Controlling device.



A. E. SWAIM.

CONTROLUNG DEVICE,

Pm/men FILED SEPT. I6, 1916.

Patente July 24,1917.

2 SHEETS-SHEET 1.

naw woe HRVEL E Ewan a A. E. SWAIM.

CONTROLLING DEVICE. APPLICATIUN FILED SEPT. 16. 19:6.

Patented J 11137 24, 191?.

2 SHEETSSHEET 2.

. HRVEL E SwmM UNITED STATES PATENT FFlllGli.

ARVEL E. SWAIM, OF KANSAS CITY, MISSOURI.

CONTROLLING DEVICE.

Application filed September 16, 1916.

To all whom it may concern:

Be it known that I, ARVEL E. SWAIM, a citizen of the United States,residing at Kansas City, in the county of Jackson and State of Missouri,have invented certain new and useful Improvements in ControllingDevices, of which the following is a specification, reference being hadto the acco-nn panying drawings.

This invention relates to certain improvements in controlling devicesand has relation more particularly to a device of this general characterespecially designed and adapted for use in connection with steam boilersor the like and is an improvement on my co-pending application SerialNo. 91,380 filed April 15, 1916; and it is an object of the invention toprovide a novel and improved device of this general character includinga yieldably supported container in proper communication with the boilerwhereby the water level within the boiler controls the direction oftravel of the container together with novel and improved means wherebysaid container controls the water supply to the boiler Or the heatingmedium therefor.

The invention also has for an object to provide a device of this generalcharacter with novel and improved means whereby a signal is caused tooperate upon the container assuming a predetermined position.

The invention consists in the details of construction and in thecombination and arrangement of the several parts of my im provedcontrolling device whereby certain important advantages are attained andthe device is rendered simpler, less expensive and otherwise moreconvenient and advantageous for use, all as will be hereinafter morefully set forth.

The novel features of the invention will hereinafter be definitelyclaimed.

In order that my invention may be the better understood, I'will nowproceed to describe the same with reference to the accompanyingdrawings, wherein Figure 1 is a diagrammatic view partly in elevationand partly in section illustrating a controlling device constructed inaccordance with an embodiment of my invention;

Fig. 2 is an enlarged view partly in section and partly in top planillustrating the rock arm as herein disclosed together with certain ofthe parts coacting therew1th;

Specification of Letters Patent.

Patented July 2%, 1917.

Serial No. 120,540.

Fig. 3 is an enlarged fragmentary view partly in section and partly inelevation of the rock lever and certain of the parts coacting therewith;

Fig. 1 is an enlarged fragmentary view partly in section and partly intop plan illustrating the bell lever and its mounting coacting with asupplemental, controlling means as herein embodied;

Fig. 5 is a fragmentary view partly in top plan and partly in sectionillustrating a base mounting of the vertical main pipe and the means forconnecting the delivery pipes thereto; and

Fig. 6 is a vertical sectional view taken through the device as shown inFig. 1.

As disclosed in the accompanying drawings, B denotes a fragment of aboiler of any conventional construction and positioned eXteriorly of theboiler is the tubular upright 1 having its lower end portion operativelyengaged with the upstanding sleeve or barrel 2 carried by the supportingplate 3.

Adjustably secured to the upright 1 through the medium of the set screw4 or the like, is the collar 5 provided with the diametrically opposedand laterally directed knife edges 6 which serve as a mounting for therock arm 7 said arm 7 being provided with a supplemental member 7 sothat the same may have requisite engagement with the knife edges 6.

One end portion of the arm 7 is provided with an enlarged opening 8through which is disposed the pin 9 square in cross section and which iscarried by and intersects the bifurcated portion 10 of the plug 11detachably engaged with the upstanding pipe 12 arranged at the axialcenter of the container C. By employing the knife edges 6 and the squarepin 9, it will be perceived that the arm 7 may rock with a minimum offriction and that the arm 7 may also coact with the plug 11 in a similarmanner.

In communication with the pipe 12 is the horizontally disposed pipe 1awhich is also in communication with the vertically disposed pipe 15positioned beyond the container O and in alinement with the upright 1.

The container C is also provided at its axial center with the dependingpipe 16 in communication with the horizontally disposed pipe 17 which isalso in communication with the vertical pipe 15. The upper end of thevertical pipe 15 is in com1nunication, through the medium of theflexible pipe 18, with the upright 1 at a predetermined point above thecollar 5 while the lower end of the vertical pipe 15 is incommunication, through the medium of the flexible pipe 19, with theupright 1 at a predetermined polnt below the container C.

The upper end of the upright 1 is in communication, through the mediumof the p1pe or conduit 20, with the steam dome S of the boiler B whilethe sleeve 2 hereinbefore referred to is in communication, through themedium of the pipe 21, with the boiler B adjacent the bottom of saidboiler.

Adjustably engaged with the end portion of the arm 7 remote from theplug 11 is the poise 22 whereby it will be perceived that the arm 7 maybe so balanced as to initially maintain the longitudinal or verticalcenter of the container C substantially flush with the normal water linewithin the boiler B,

said water line being indicated in the accom-- panying drawings bydotted lines as at a.

V denotes a valve of any ordinary or preferred type interposed in thewater feed pipe P discharging into the boiler B and the stem 23 of saidvalve V is provided with a rock arm 24 which is engaged with the lowerextremity of the rod 25 which extends upwardly and has its upper endportion disposed through the eye 26 in swiveled engagement with the arm7 as indicated at 27, said rod 25 being held against longitudinalmovement independently of the arm 7 through the medium of'the set screw28 or the like.

It will be at once understood that the connections between the boiler B,the steam dome S and the container G will maintain the same water levelin both the boiler B and the container C, and as the water level lowersthe cylinder or container C will rise under the influence of the poise22, whereupon the valve V will be opened to permit a supply of water tobe fed within the boiler B.

As the water level rises the increased weight afl'orded by the waterwithin the container C will over-balance the poise 22 and cause saidcontainer to lower and close the valve V whereby it will be at oncenoted that a predetermined water level within the boiler B will beautomatically maintained.

If for any reason the water level should become unusually low and asuflicient supply of water could not be supplied, I find it of advantageto employ an audible signal herein disclosed as a conventional steamwhistle 29 in communication with either the upper portion of the upright1 or the conduit 20 leading from the steam dome S and having itsoperating arm 30 provided with the rod 31 loosely disposed through theeye member 32 in swiveled engagement with the arm 7 as indicated at 33,and at a predeterminedpoint below the arm 7 said rod 31 is provided withthe adjustable stop or shoulder 34. By this arrangement it will be perceived that as the container C rises, the stop or shoulder 34 will beengaged by the eye 'member 32 whereupon the continued rise ofthc'container C will result in a downward pull upon the rod 31 with theresult that the whistle 29 will be caused to sound.

I'have alsofound in practice that my improved device may be employedwith con venience and facility for controlling the delivery of liquidfuel when such type of burners are employed in connection with theboiler, and as herein disclosed, P denotes a pipe leading from asuitable source of fuel supply to a conventional burner (not shown)positioned beneath the boiler B, and interposed in said pipe P is avalve V, the stem 35 of which being provided with the rock.

upright 1. The forward or outer end of the horizontal arm 39 of the belllever 40 is provided with the elongated slot 45 through which isdirected the rod 25,and adjustably secured to the rod 25 above thehorizontal arm 39 and through the medium of the set screw 46 or thelike, der 47 whereby it will be continued or excessive rise of thecontainer C under the influence is the stop or shoul- 48 of the belllever 40 from the weight49 aflixed to the rod 37, whereupon the valve Vwill be adjusted into will be understood that the valve V is reset oropened manually. i

As herein embodied, the weight 49 is provided with an annular flange 50with which coacts the hookextremity 51 of the vertical arm 48 as isbelieved to be clearly illustrated in Fig. 1 of the accompanyingdrawings.

As is particularly illustrated in Figs. 1, 5 and 6, of the drawings, thepipes P. and P are loosely disposed through the outer ends of the crosshead 52 suitably secured to the upright 1 adjacent the lower end thereofthrough the medium of the set screw 53 or the like and that said pipes Pand P. are,

held against longitudinal movement independently of the cross head 52through the medium of the set screw 54 or the like.

l/Vhile the pipe P has been defined as'rcoacting with a liquid burner,it will be understood that if preferred the same may lead from asuitable source ofwater supply and perceived that upon of the poise 22,the

horizontal arm 39 will be depressed or forced downwardly so'as torelease the {vertical arm a closed position. It-

be in communication with the boiler B for the same purpose as the pipe Phereinbefore referred to. As this latter arrangement is believed to beself-evident, a detail illustration thereof is deemed unnecessary.

From the foregoing description, it is thought to be obvious that acontrolling device constructed in accordance with my invention is of anextremely simple and comparatively inexpensive nature and isparticularly well adapted for use by reason of the convenience andfacility with which it may be assembled, and it will also be obviousthat my invention is susceptible of some change and modification withoutmaterial departure from the principles and spirit thereof and for thisreason I do not wish to be understood as limiting myself to the precisearrangement and formation of the several parts herein shown in carryingout my invention in practice, except as hereinafter claimed.

I claim:

1. In combination with a boiler, a container supported for verticalmovement, said container being in communication with the boiler aboveand below the Water line of the boiler, means for balancing thecontainer, a valve, an operative connection between the valve and thecontainer whereby said valve is under control of the movement of thecontainer, a second valve, an operating rod therefor, a bell levermounted for rocking movement and detachably engaged with the operatingrod of the second valve, and means under control of the connectionbetween the container and the first named valve for disengaging the belllever from the controlling rod of the second valve, said bell leverbeing provided with an opening through which the operating rod of thesecond valve is loosely directed.

2. In combination with a boiler, a tubular upright positioned exteriorlythereof and in communication adjacent its top and bottom with the boilerat points below and above the water line of the boiler, an arm connectedintermediate its length with the upright for rocking movement, acontainer, pipes in communication with the container through the top andbottom thereof, a third pipe in communication with the first mentionedpipes, an upright connection between the end portion of the arm and thepipe in communication with the container at the top thereof, flexibleconduits in communication with the opposite ends of the third named pipeand with the tubular upright at points above and below the water line ofthe boiler, and a poise co-acting with the opposite end portion of thearm.

In testimony whereof I hereunto afiix my signature in the presence oftwo witnesses.

ARVEL E. SWAIM.

Witnesses:

JOE MOGILL, C. M. JENKINS.

Gopies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. G.

